Service-pole.



' o. KNOEBZBR.

SBR-VIGE POLE. APPLIOATION FILED mm. 26. 1907.

. 907,817, Patented Dec; 29,1908.

OTTO KNoERZEnfoF HKMMoNniNmANA;

SERVICE-POLE.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed December 26, 1907. Serial No. 408,075.

To all whom it may concern:

'Be it known that I, OTTO KNOERZER, a citizen of the United States, aresident .of Hammond, in the county of Lake andState of Indiana, haveinvented certain new and useful Improvements in Service-Poles, of whichthe following is a full, clear, and .eX- act description.

My invention relates to certain new and useful improvements in servicepoles, such as telegraph, trolley,.electric light poles and the like,and more particularly to means for supporting the poles upon theordinary curbstone.

The object of this invention is to rovide a base for service poleswhereby the pole may be positioned and supported directly on the curb.line, without destruction of the curbstoneror in fact without anyalteration or Id-isflgureme'ntiof the same-so that in r'ca'se itafterwards becomes desirable-.to. :remove the :poles and bases: thecurbstone willbe left intact.

' In most municipalitiesthe desideratum is to have the poles on the curbline and many attemptshave been made to accomplish. this result,however, without much success, and. as a result thepoles are usuallyplaced'on" either side of the curbstone.

With my invention .1 have attained the desired result, and to such-endthe invention consists a base which is'supportable in the groundadjacent to the curbstone, and inde-' pendent of .the stone itself, andso con= structed and arranged as to hold the pole immediately above andin. .alinement with the curbstone.

The. invention is .fully described in this specification and illustratedin the accompanying drawing in which Figure :1 is a side view of a poleand the base, and showing a fragment of the roadway in cross section.Fig. 2 is a perspective view of the two sections which comprise the abase. Fig. 3 is a horizontal section taken on line.3-'3 Fig. 1. Fig. 4is a horizontal section taken on the line 44, Fig. 1, showing the partsin a position occupied before the clamp bolts are applied. Fig. 5 is asimilar view after the bolts are tightened up. Fig. 6 is aside view ofa'modifled formand Fig. 7

is afvie'w 'of a second modification.

.Referrin'gi-to the drawing 1 is :arcurbs'ton'esuchas'isordinarilyemployed to separate the roadway. from the terrace,or the "sidewalk. The. curb is. formed in a variety of ways,

webs. or ribs that are sometimes being in the form of large flatslabs,and often of concrete, molded into the proper form. The form thereshownis that of a'stone slab set into the ground with 8 or 10 inches of itsupper end exposed above ground. 2 is a trolley pole, or telegraph pole,as the case may be, and which it is pro posed to support above and inalinement with the curbstone. The preferred form of the baseis seenats3,Figs. 1 to 5 inclusive, and. in general comprises two substantiallysimilar plates .4, 4, one of which is: arrangedto extend on either sideof the curbstone. Each half consists in a plate 4, which'is bent into anarc-of a circle with a radiussubstantially that of the pole to besupported. The radius of the arc of the plate before it is boltedon thepole is a little greater than the radius 'of the pole in order that itmay be drawn snugly upon the pole.

Awnumber of earsioareisecured uponthe perip'arttof.the plateszie, byrivets orth'e 6, and'eachfof the plates 4 are arranged to'be drawntogether by bolts 7 that pass through the ears 5, and have nuts 8,threaded upon their ends, the tightening up of whichclamps the plates 4,upon the pole.

For certain conditions the plates are reinforced upon their inneroradjacent sides, .by

referably formed of sheet metal bent up to 'orm a base'9and one or moreflanges 10. .Thereinforcing plate is secured to the plate by bolts orrivets 1 1 which pass through the reinforcementand plate 4. Because ofthe curved form of the plates I am enabled to place these reinforcementsat points best adapted for resisting the bending strain, inasmuch as thereinforcements can be placed on the concave face. of 95, theplate,between the latter and the curb. To guardagainst the twisting ortiltingof the base I have found it. advisable to. provide a laterallyprojecting wing or flange 12 which is secured upon the outer face of theplate by rivets or bolts, 11, which pass through ears 13, of thewing orflange. As shown the wing or flange extends out from the plate and has alip or edge 14 bent out to one side of the main body of the wing orflange and adapted to rest against the outer face of the plate. Thislip, together with the cars 13, effectively prevents theflange frombeing hent'o'r-folde'd overupon'the plateand materiallyst'renglth'en andstiffen the wing itself.

Each plate 4 is preferably formed withfa row of. perforations .15,through which: the

bolts or rivets may be passed to connect the reinforcement and wing tothe plate. If desired lag screws may be passed through the upper holesand driven into the pole.

In Fig. 6 one of the two plates is supplanted by a plate, which insteadof extending down into the ground, is formed with a horizontal flange 4which may be bolted or otherwise secured to the sidewalk. intended foruse when the sidewalk extends to or over the curb, and it is notpermissible l to make a hole through the sidewalk for the plate. Thisform of base is very effectual for this purpose, is easily put in placeand its removal leaves the curb and walk practically intact.

In Fig. 7 the plates 4, 4 are arranged to support a ole of much smallerdiameter than the prece ing poles, and when the curbstone is ofpractically the same thickness as before. In this form of the inventionthe lower parts of the plates are bent back as at 4 so that the partsabove the curb may extend well towards the middle line. of the pole. Thelower part may be somewhat flattened if desired to give a wide surface.

I am well aware that various forms of bases have been devised for fenceposts, hitching posts, etc., but I believe it to be broadly new toprovide means for securing a telegraph, telephone, electric light,trolley pole, or like service pole, at a point immediately above thecurb of a roadw ay without injury or alteration of the curb itself. ThisI accomplish by the use of a particular kind of base which is in twoparts and arranged to straddle the curbstone. Because of the length ofsuch poles and the constant strain upon them it is essential that aparticularly rigid, strong and substantial base be provided and that atthe same time it occupy no more space than is necessary. All of theserequirements have been accomplished in this invention.

In putting the bases in place, the hole is first dug and the pole set inplace. If desired a concrete foundation may be used in which the bottomof the base is embedded.

I am aware that various other alterations and modification, besides theones which I have shown and described, are possible without departingfrom the spirit of my invention and I do not therefore desire to limitmyself to the exact forms shown and described.

I claim as new and desire to secure by Letters Patent 1. In a device ofthe class described the combination with a service pole, of means forsup orting said ole in alinement with a cur stone, comprising platesthat are curved to substantially fit the pole, perforated ears securedupon said plates, clamp bolts extending through said ears and seer ringthe plates upon the pole, said plates being independent of anddisconnected from the curbstone and This form is 1 having wings forsecuring said plates against lateral sway.

2. A base for supporting service poles in alinement with a curbstone,comprising two substantially similar plates, each having the form of anarc of a circle practically fitting the pole, ears upon the upper end ofthe plates, clamp bolts connecting the ears to clamp the plates upon thepole, said plates the curbstone, and of such length as to exi tend downbelow the curbstone and obtain a firm grip in the ground, and laterallyextending webs secured upon the plates below the ground level.

3. A base for supporting service poles in alinement with a curbstone,comprising two substantially similar plates, each having the form of anarc of a circle, practically litting the pole, ears upon the upper endof the plates, clamp bolts connecting the ears to clamp the p ates uponthe pole, said plates being spaced apart sulliciently to straddle thecurbstone, and of such length as to extend down below the curbstone andobtain a firm grip in the ground, laterally extending webs secured uponthe plates below the ground level, and Vertically extending reinforcingwebs secured upon the concave faces of the plates.

4. A. base for supporting service poles in alinement with a curbstone,comprising two substantially similar plates, each having the form of anarc of a circle, practically fitting the pole, ears upon the upper endof the plates, clam bolts connecting the ears to clamp the p ates uponthe pole, said plates being spaced apart sufficiently to straddle thecurbstone, and of such length as to extend down below the curbstone andobtain a firm grip in the ground, laterally extending webs secured uponthe plates below the ground level, and vertically extending reinforcingwebs secured upon the concave faces of the plates, each of said platesbeing formed with a central row of perforations, through which thesecuring means for the webs and reinforcements extend.

5. In a service pole structure, the combination with a curbstone and aservice pole which is to be supported upon said curbstone and inalinement therewith, of a pair of plates clamped upon the lower end ofthe pole to straddle the curbstone, said plates being of such length asto extend down considerably below the curbstone, laterally extendingwings secured upon said plates below the ground line, and reinforcingwebs secured upon the inner adjacent faces of the plate.

6. In a service pole structure, the combination with a curbstone, and aservice pole which is to be srpported upon said curbstone and inalinement therewith, of a pair of plates clamped upon the lower end ofthe pole to straddle the curbstone, said plates being of being spacedapart sufficiently to straddle "i such length as to extend downconsiderably below the curbstone, and each having'a series of alineclperforations laterally extending Wings having perforations registeringwith the perforations in the plates and adapted to be .secured upon theplates below the ground line by bolts or rivets passing through theregistering perforations and reinforcing webs having perforationsregistering with perforations in the plates and secured upon the inneradjacent faces of the plate by bolts or rivets passing throughregistering perforations in the webs and plates.

In witness whereof, I have executed the above application this 28rd dayof Decem- 15 ber, A. l). 1907 at Chicago, county of Cook, and State ofIllinois.

OTTO KNOERZER Witnesses CHARLES OSHERVEY, FRANK BEMUS.

